Reversible windows



April 21, 1970 P. VE. IWEGEFELT'I Y 3,507,073

REVERSIBLE wmnows Filed April 4, 196$ e Sheet s-Sheet 1 FIG. 4

INVENTOR PER EGO/J WEGEFELT KARL ("J Fmqzs ATTORNEY APril 21, 1970 Q P.E. WEGEFELT ,0

REVERS IBLE WINDOWS Filed A ril 4, 1968: e Sheets-Sheet 2.

A ril 21, 1970 P. E. WEGEFQELT 3,507, 7

I REVERSIBLE WINDOWS Filed April 4.. 1968 e Sheets-Sheet s April 21,1970 Filed April 4, 1968 6Sheet s-Sheet'4 April 21, 1970 Filed April 4,v 1968.

REVERSIBLE wmbow's E. WEGEFELT- e Shets-Sheet s FIG.

April 21, 1970 P. E. WEGEF-ELT 8 6 9 l A l i m. A d e l 1. F

a Sheets-Sheet s' United States Patent Ofiice 3,507,073 Patented Apr.21, 1970 3,507,073 REVERSIBLE WINDOWS Per Egon Wegefelt,, Trelleborg,Sweden, assignor t Olof Anderssons Eftr, Industrigatan, Trelleborg,Sweden Continuation-impart of application Ser. No. 516,994, Dec. 28,1965. This application Apr. 4, 1968, Ser. No. 718,804 Claims priority,application Sweden, Apr. 20, 1967, 5,538/ 67 Int. Cl. E05d 15/52 US. Cl.49-192 2 Claims ABSTRACT OF THE DISCLOSURE A window with frame and sashtherein pivotable on a median horizontal axis and on a horizontal axisnear its bottom with a member connected between the frame and sash andmovable in relation to both by a swinging of the sash more or less farfrom the shut position about the median horizontal axis defined by thepivots on the sash. Also frictional resistance is applied to said memberto retain it in the position into which it has been moved by thepreparatory sWinging of the sash about the median axis.

This application is a continuation-in-part of my application Ser. No.516,994, filed Dec. 28, 1965, entitled Reversible Windows, nowabandoned.

This invention relates to reversible windows and more particularly towindows opened by swinging the sash about pivots thereon disposed atapproximately midheight of the window in bearings in the window frame,during which said swinging movement the lower edge of the sash is swungoutwardly away from the bottom member of the window frame and the upperedge of the sash inwardly of the room so that there is obtained betweenthe sash and the frame at the bottom a ventilating opening on the outerside of the frame, and at the top a ventilating opening on the innerside of the frame.

In reversible windows of this kind it has been found desirable andpossible to arrange for setting the sash also in a ventilating positionin which the sash has its lower edge engaging the bottom member of theframe and has been swung about said lower edge inwardly of the room sothat a ventilating opening is obtained between the sash and the frameonly at the inner side of the frame. To attain this, it has already beensuggested in prior art to mount the pivot bearings, which are situatedapproximately at mid-height of the window, at the upper ends of abutmentmembers which in the closed position of the window constitute theabutments of the frame for the sash along those portions of the verticalside members of the frame which extend between the pivot bearings andthe bottom member of the frame, and to arrange these abutment membersfor swinging movement inwardly of the room about hingesconnecting saidabutment members at their lower ends with the frame, so that from closedposition the sash can be swung in its entirety together with saidabutment members inwardly of the room about the hinges connecting theabutment members at their lower ends with the frame.

The characteristic features of the improved window according to thepresent invention allow that the sash can be placed in an open position,in which it is swung more or less far inwardly about the lower edgethereof, by first swinging the sash about the pivots with the lower sashedge more or less far outwardly away from the bottom member of the frameand then pulling the lower edge of the sash back into engagement withthe bottom member of the frame and swinging the sash inwardly about thelower edge thereof. In other words, it is accomplished with the presentinvention that the upper width of a ventilating opening which isrealized between the sash and the frame entirely on the inner side ofthe latter by swinging the sash inwardly together with the abutmentmembers supporting the bearings for the sash pivots, is determined bythe distance the lower edge of the sash, swinging about its pivots, ismoved outwardly away from the bottom member of the frame, before thesash is Eswung back with its lower edge into engagement with the frameand in its entirety inwardly together with the rebate fill-out meanscarrying the pivot bearings.

The present invention also provides that the same arrangement which, ina manner that is adjustable by means of the sash through the swingingthereof about its pivots, restricts the inward swinging of the sashabout the lower edge thereof, exerts a restraining effect on the sash inthe ventilating position thereof, which has been reached by inwardswinging of the sash about the lower edge thereof.

For better elucidation of the invention reference is made to theaccompanying drawings, in which:

FIGURES 1-7 show very much diagrammatized vertical sections of thewindow, taken at right angles to the plane of the window andillustrating some of the many different positions into which the sashmay be set relative to the frame;

FIGURE 8 shows an embodiment of the invention in a vertical projection,taken at right angles to the plane of the window, of the sash and one ofthe rebate fill-out means carrying the pivot bearings in position in theframe (indicated by dash-and-dot lines) when the window is closed;

FIGURES 9, 10 and 11 show similar vertical projections of the sash indifferent positions relative to the frame; and

FIGURE 12 shows a horizontal section on line XII XII in FIGURE 8.

The window frame has vertical side members 1, a horizontal top member 2,and a likewise horizontal bottom member 3. The horizontal pivots of thesash, which are located approximately at mid-height of the window, areindicated in the diagrammatic FIGURES 1-7 by a single point 4, and manfigures the inner side of the window faces to the right and the outerside thereof to the left. In the illustrated embodiment of the window,the sash is composed of an inner sash 5 having the pivots 4, and anouter sash 6 which, when the entire sash (5, 6) has been swungapproximately halfway around, can be moved out from the inner sashinside the room for cleaning purposes, as is indicated in FIGURE 7. Theembodiment of the pivots and their bearings shown in FIGURES 8-11 is ofthe kind in which the sash has each of its two side members providedwith a fitting carrying two pivots 8 and 9 each of which cooperates insuch a Way with one of the two bearing recesses in a fitting 10,

of the two vertical side members 1 of the frame, are dis-- posed at theupper ends of the abutment members 11 which constitute the abutments ofthe frame for the sash along those portions of the vertical frame sidemembers 1 which extend between the pivot bearings and the frame bottommember 3. These abutment members 11 are designated rebate fill-out meansbecause at closed window they fill out rebates in the facing sides ofthe frame and" the sash. The rebate fill-out means 11 can be swung fromtheir position at closed window inwardly about hinge pins 12 connectingsaid members 11 at their lower ends with the frame, so that the sashtogether with the rebate fillout means 11 and the pivot bearings attheir upper ends can be swung inwardly about its lower edge forproviding a ventilating opening solely on the inner side of the framebetween the latter and the sash, as will appear from FIGURES 4, and 11.

The mechanical connection of the sash with the frame, which connectionserves adjustably to restrict the inward swinging of the sash about thelower edge thereof, comprises at each of the window sides in theembodiment shown in FIGURES 8-11 an arm 13 and a frictional resistance16 to the swinging movement of the arm 13 in relation to the sash. Saidarm 13 has one end pivotally mounted on the fitting 7, which carries thepivots 8, 9 and is disposed on the inner sash 5, and at the other endsaid arm 13 bears a pin or roller 14 which rotatably and movably engagesin a vertical groove 15 provided in a fitting secured to the frame sidemember 1. The frictional resistance 16 is arranged in the mounting ofthe arm 13 on the fitting 7. This mechanical connection of the sash withthe frame functions entirely independently of an arm 17 which restrictsthe pivotment of the rebate fill-out means 11 inwardly and which at oneend is pivotally mounted in the fitting 10 on the rebate fill-out meansand at the other end bears a pin or roller 18 which rotatably andmovably engages a vertical groove 19' in a fitting secured to the frameside member 1. In the embodiment described above of the mechanicalconnection of the sash with the frame, which serves adjustably torestrict the inward swinging movement of the sash about the lower edgethereof, the rebate fill-out means 11 can be arranged to be locked intheir normal position, i.e. the position they occupy when the window isclosed (FIG- URES 1 and 8). The fittings 10 can be provided for examplewith locking recesses 20 in which locking means 21 (FIGURE 12) can becaused to engage. Said locking means are mounted in the frame andoperable by means of a handle on said frame.

The device 13-16 which serves adjustably to restrict the swinging of thesash about the lower edge thereof, functions in the following manner.When it is desired to set the sash in a ventilating position in whichthe sash is swung inwardly about thel ower edge thereof, such as theposition exemplified in FIGURES 4, 5 and 11, the sash is first swungabout its pivots with the lower edge outwardly away from the framebottom member 3, as is exemplified in FIGURES 2, 3 and 9. Upon suchswinging of the sash about the pivots 8, 9 thereof the arm 13 ispositively swung in relation to the sash about its pivot point on thesash while surmounting the frictional re sistance 16 provided for in thepivot point. To surmount this resistance makes no difficulty because onecan easily exert a large force on the bottom member of the sash to movethe sash with the lower edge outwardly away from the frame bottommember. The farther distance the lower edge of the sash is movedoutwardly from the frame bottom member, the greater will be the anglethrough which the arm 13 is swung about its pivot point on the sash fromits position at closed window, as is shown in FIGURE 8. In other words,the setting of the arm 13 in relation to the sash will be dependent onhow far the sash is swung about its pivots 8, 9 with the lower edgeoutwardly away from the frame bottom member as is exemplified in FIGURE9. The frictional resistance 16 provided for in the pivot point of thearm 13 on the sash insures that the arm 13, when the sash is pulled backwith its lower edge inwardly against the frame bottom member, willretain the position into which it has been set about its pivot point onthe sash by the swinging of the sash with the lower edge thereofoutwardly away from the frame bottom member 3. As a consequence of saidretention of arm 13 in the set position thereof with respect to thesash, when the latter is pulled from the position in FIGURE 9 with itslower edge inwardly against the frame bottom member, the rebate fill-outmeans 11 carrying the pivot hearings will automatically be swunginwardly about the hinge pins 12 connecting them at their lower endswith the frame, as is exemplified in FIGURE 10. It will appear that theposition in which the inward pivotment of the rebate fill-out means 11and of the sash about the lower edge thereof takes place when the sashhas been pulled with its bottom into engagement with the rebate fill-outmeans, as is exemplified in FIGURE 11, varies with the already describedsetting of the arm 13 about its pivot point on the sash. In other words,the described setting of the arm 13 involves a corresponding setting ofthe upper width of the opening between the frame and the sash in theventilating position of the sash swung inwardly about the lower edgethereof. By reason of the frictional resistance 16 provided for, the arm13 will have a restraining effect on the sash in such ventilatingposition thereof. Since there does not occur any swinging of the rebatefill-out means 11 during the swinging of the sash about its pivots withthe lower edge of the sash outwardly away from the frame, it is possibleto lock the rebate fill-out means with respect to the frame so as toinsure that the rebate fill-out means 11 will remain immovable inposition in the frame at such operation of the window as is done forpurposes other than setting the sash into a ventilating position, inwhich the sash is swung inwardly about the lower sash edge.

It will be obvious to those skilled in the art that various changes maybe made without departing from the scope of the invention and theinvention is not to be considered limited to what isshown in thedrawings and described in the specification.

What is claimed is:

1. A reversible window comprising, in combination,

a frame having side, top, and bottom members,

a sash mounted for swinging movement in said frame about a pointapproximately mid-height of the window from a shut position in saidframe to various ventilating positions including positions with itslower edge outwardly and its upper edge inwardly about said point atapproximately mid-height of the window, and also about its lower edgeinwardly,

rebate fill-out means having at least a portion thereof extendingbetween said frame and said sash,

said rebate fill-out means extending approximately one half the heightof said sash and pivotally mounted adjacent the lower end thereof tosaid frame,

bearing means on each side of said sash pivotally mounting said sash atapproximately mid-height to the upper end portion of said rebatefill-out means, said bearing means including spaced pivot pins,

and a cooperating fitting having spaced recesses therein to receive saidpins,

said pins and said fitting having one located at approximatelymid-height of said sash and the other on the upper end portion of saidrebate fill-out means,

first control means on at least one side of said sash connecting saidsash and said frame so as to adjustably restrict the swinging of saidsash inwardly about the lower edge thereof including a first control armhaving one end slidably retained in said frame and pivotally mounted atits other end to said sash so as to swing said sash about said pivotpins with the lower edge of said sash outwardly away from said bottommember of said frame,

and a frictional resistance means at said pivotally mounted and of saidfirst control arm for retention of said first control arm in adjustedposition when said sash, after adjustment of said first control arm, isswung back with its lower 6 edge against said bottom member of saidframe one of said pins resting in the bottom of a recess when andtogether with said bearing means inwardly the window is in a closedposition. about the lower edge of said sash, second control means on atleast one side of said frame References Cited connecting said frame andsaid rebate fill-out means 5 UNITED STATES PATENTS so as to ad ustablyrestrlct the swmgmg of said rebate fill-out means inwardly about itslower end in- 3357135 12/1967 Russ et 49390 Cluding a second control armhaving one end slida-bly re- FOREIGN PATENTS tained in said frame andpivotally mounted at 10 its other end to said rebate fill-out means. 2.A reversible window as claimed in claim 1, further KENNETH DOWNEY,Primary Examiner characterized by said pivot pins mounted on said sashand said fitting having spaced recesses located on the upper end por- 1549390 tion of said rebate fill-out means,

1,202,825 12/1965 Germany.

